Mercurial > projects > dwt-linux
annotate dwt/DWTException.d @ 231:654b7d7cc33c
instead of throwable member var, use the Exception.next
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 16 Apr 2008 20:19:29 +0200 |
parents | de2578a843a7 |
children | 380bad9f6852 |
rev | line source |
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72 | 1 /******************************************************************************* |
0 | 2 * Copyright (c) 2000, 2005 IBM Corporation and others. |
3 * All rights reserved. This program and the accompanying materials | |
4 * are made available under the terms of the Eclipse Public License v1.0 | |
5 * which accompanies this distribution, and is available at | |
6 * http://www.eclipse.org/legal/epl-v10.html | |
7 * | |
8 * Contributors: | |
9 * IBM Corporation - initial API and implementation | |
72 | 10 * Port to the D programming language: |
11 * Frank Benoit <benoit@tionex.de> | |
0 | 12 *******************************************************************************/ |
71 | 13 module dwt.DWTException; |
0 | 14 |
71 | 15 import dwt.DWT; |
0 | 16 |
17 import tango.core.Exception; | |
18 import tango.io.Stdout; | |
19 | |
20 /** | |
21 * This runtime exception is thrown whenever a recoverable error | |
71 | 22 * occurs internally in DWT. The message text and error code |
0 | 23 * provide a further description of the problem. The exception |
24 * has a <code>throwable</code> field which holds the underlying | |
25 * exception that caused the problem (if this information is | |
26 * available (i.e. it may be null)). | |
27 * <p> | |
28 * SWTExceptions are thrown when something fails internally, | |
71 | 29 * but DWT is left in a known stable state (eg. a widget call |
0 | 30 * was made from a non-u/i thread, or there is failure while |
31 * reading an Image because the source file was corrupt). | |
32 * </p> | |
33 * | |
71 | 34 * @see DWTError |
0 | 35 */ |
36 | |
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de2578a843a7
Tango update to rev 3158, TracedException>Exception, fromUtf8z>fromStringz,Fix Bug in MenuItem Thanx to nascent for the report.
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parents:
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37 public class DWTException : Exception { |
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38 /** |
71 | 39 * The DWT error code, one of DWT.ERROR_*. |
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40 */ |
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41 public int code; |
0 | 42 |
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43 /** |
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44 * The underlying throwable that caused the problem, |
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45 * or null if this information is not available. |
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46 */ |
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47 public Exception throwable( Exception e ){ |
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48 this.next = e; |
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49 return this.next; |
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instead of throwable member var, use the Exception.next
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50 } |
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51 public Exception throwable(){ |
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52 return this.next; |
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53 } |
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54 |
0 | 55 |
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56 //static final long serialVersionUID = 3257282552304842547L; |
0 | 57 |
58 /** | |
59 * Constructs a new instance of this class with its | |
60 * stack trace filled in. The error code is set to an | |
61 * unspecified value. | |
62 */ | |
63 public this () { | |
71 | 64 this (DWT.ERROR_UNSPECIFIED); |
0 | 65 } |
66 | |
67 /** | |
68 * Constructs a new instance of this class with its | |
69 * stack trace and message filled in. The error code is | |
70 * set to an unspecified value. Specifying <code>null</code> | |
71 * as the message is equivalent to specifying an empty string. | |
72 * | |
73 * @param message the detail message for the exception | |
74 */ | |
75 public this (char[] message) { | |
71 | 76 this (DWT.ERROR_UNSPECIFIED, message); |
0 | 77 } |
78 | |
79 /** | |
80 * Constructs a new instance of this class with its | |
81 * stack trace and error code filled in. | |
82 * | |
71 | 83 * @param code the DWT error code |
0 | 84 */ |
85 public this (int code) { | |
71 | 86 this (code, DWT.findErrorText (code)); |
0 | 87 } |
88 | |
89 /** | |
90 * Constructs a new instance of this class with its | |
91 * stack trace, error code and message filled in. | |
92 * Specifying <code>null</code> as the message is | |
93 * equivalent to specifying an empty string. | |
94 * | |
71 | 95 * @param code the DWT error code |
0 | 96 * @param message the detail message for the exception |
97 */ | |
98 public this (int code, char[] message) { | |
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99 super (message); |
8cec8f536af3
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100 this.code = code; |
0 | 101 } |
102 | |
103 /** | |
104 * Returns the underlying throwable that caused the problem, | |
105 * or null if this information is not available. | |
106 * <p> | |
107 * NOTE: This method overrides Throwable.getCause() that was | |
108 * added to JDK1.4. It is necessary to override this method | |
109 * in order for inherited printStackTrace() methods to work. | |
110 * </p> | |
111 * @return the underlying throwable | |
112 * | |
113 * @since 3.1 | |
114 */ | |
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de2578a843a7
Tango update to rev 3158, TracedException>Exception, fromUtf8z>fromStringz,Fix Bug in MenuItem Thanx to nascent for the report.
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parents:
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115 public Exception getCause() { |
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116 return throwable; |
0 | 117 } |
118 | |
119 /** | |
71 | 120 * Returns the string describing this DWTException object. |
0 | 121 * <p> |
122 * It is combined with the message string of the Throwable | |
71 | 123 * which caused this DWTException (if this information is available). |
0 | 124 * </p> |
71 | 125 * @return the error message string of this DWTException object |
0 | 126 */ |
127 public char[] getMessage () { | |
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8cec8f536af3
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128 if (throwable is null) return super.toString (); |
8cec8f536af3
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parents:
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129 return super.toString () ~ " (" ~ throwable.toString () ~ ")"; //$NON-NLS-1$ //$NON-NLS-2$ |
0 | 130 } |
131 | |
132 /** | |
133 * Outputs a printable representation of this exception's | |
134 * stack trace on the standard error stream. | |
135 * <p> | |
136 * Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) | |
137 * are not provided in order to maintain compatibility with CLDC. | |
138 * </p> | |
139 */ | |
140 public void printStackTrace () { | |
141 Stderr.formatln( "stacktrace follows (if feature compiled in)" ); | |
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de2578a843a7
Tango update to rev 3158, TracedException>Exception, fromUtf8z>fromStringz,Fix Bug in MenuItem Thanx to nascent for the report.
Frank Benoit <benoit@tionex.de>
parents:
72
diff
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142 foreach( msg; info ){ |
0 | 143 Stderr.formatln( "{}", msg ); |
144 } | |
145 if ( throwable !is null) { | |
59
8cec8f536af3
All D sources complete gvim retab (4 spaces), bug with Composite moveAbove/moveBelow fixed.
Frank Benoit <benoit@tionex.de>
parents:
10
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146 Stderr.formatln ("*** Stack trace of contained exception ***"); //$NON-NLS-1$ |
158
de2578a843a7
Tango update to rev 3158, TracedException>Exception, fromUtf8z>fromStringz,Fix Bug in MenuItem Thanx to nascent for the report.
Frank Benoit <benoit@tionex.de>
parents:
72
diff
changeset
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147 foreach( msg; throwable.info ){ |
0 | 148 Stderr.formatln( "{}", msg ); |
149 } | |
59
8cec8f536af3
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Frank Benoit <benoit@tionex.de>
parents:
10
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150 } |
0 | 151 } |
152 | |
153 } | |
154 | |
155 |